40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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Entry  Tue Mar 9 10:57:06 2021, Paco, Anchal, Summary, IMC, XARM lock and POX spectra 20210309_POX11_Spec_XARMLocked.pdf20210309_XARM_Locked.tar.gz
    Reply  Tue Mar 9 14:37:26 2021, gautam, Summary, SUS, PRM suspension PRMtrip.png
       Reply  Tue Mar 9 15:22:56 2021, Koji, Summary, SUS, PRM suspension 
Message ID: 15889     Entry time: Tue Mar 9 15:22:56 2021     In reply to: 15887
Author: Koji 
Type: Summary 
Category: SUS 
Subject: PRM suspension 

I just saw the PRM watchdog tripped at ~15:20 local (23:20UTC). I restored the PRM but I saw only the side watchdog tripped.
Again at 15:27

17:55 I found the PRM was oscillating while the watchdogs were not tripped. I turned off the OPLEV servos and this made the PRM calmed down. But I didn't turn on the OPLEVs for the past two trips. How were the OPLEVs turned on???

Ah, I'm sorry, I missed the line that Gautam was running the free-swinging test on the PRM.
The two kicks starting from 23:08:50 and from 23:26:31 were spoiled. Did it make the measurement completely waisted?

 

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